Exercising-machine.



P P... T I H. W W E EXERCISING MACHINE.

APPLIOATION FILED DEC. 5, 1903.

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No. 770,994. PATENTED SEPT. 27, 1904 E. W. WHITE. I

EXERGISING MACHINE.

APPLICATION FILED DEC. 5, 1903.

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- UNITED STATES Patented September 27, 1904.

PATENT OFFICE.

EXERClSlNG-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 770,99 dated September 27, 1904-.

Application filed December 5,1903. Serial No. 183,942- (No model.)

' To all whom it wrong concern:

Be it known that I, EDWARD W. WHITE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Exercising-lVIaehines, of which the following is a specification.

My invention relates to exercising machines; and its primary object is to provide a new and useful device of this character which is adapted to automatically rewind operatingcords around rotary members or shafts to which they are secured and from which they are adapted to be unwound during the operation of the machine and offer resistance to their unwinding through virtue of the momentum given to the shafts by the unwinding of the operating-cords, whereby it is possible to rewind the operating-cords or return their handgrips to their initial position without the necessity of employing weights, springs, or elastic operating-cords.

A further object of the invention is to provide a device of the character stated which will be cheap, compact, durable, and efficient and which can be readily secured in any position found convenient and advantageous to exercise any particular muscles.

With the above and other objects in view the invention consists in the construction, combination, and arrangement of parts hereinafter fully described, claimed, and illustrated in the accompanying drawings, which disclose the preferred form of my invention, and in which Figure 1 is a front elevation of an exercising-machine constructed in accordance with my invention. Fig. 2 is a top plan view thereof. Fig. 3 is a central horizontal sectional view of the machine. Fig. 1 is a transverse sectional view thereof.

Referring to the drawings by reference-numerals, 1 designates the sides, and 2 the front, of aframe or casing in which are mounted the operative members of the machine, said frame being adapted to be secured to a wall, the floor, or to any article at any point found to be convenient or advantageous to exercise any particular muscles. The sides of the frame are provided with centrally-located and alining screw threaded openings 3 and have their rear edges provided with vertically-disposed flanges 4, which are apertured to permit the machine to be secured in applied position by means of screws or other fastening means. The front edges of the sides are rounded off and provided with vertically-arranged flanges 5, to which the front is removably secured by means of screws 6. Abolt 7, screw-threaded at either end, is removably secured in the openings 3, and it is adapted to be secured against accidental displacement and rotation by means of nuts 7, which are mounted upon the threaded ends of the bolt and impinge against the sides 1. The impinging of the nuts 7 against the sides 1 adds rigidity to the frame in a manner that is apparent. The bolt is provided with a compound cone-bearing 9, centrally and rigidly secured thereto, and cone-bearings 10, adjustably mounted upon the threaded ends of the bolt on either side of the cone 9, whereby they may be adjusted toward or from the cone 9. The cones 10 are provided with recesses 11 to permit them to be adjusted by means of atool. Rotary members or hollow shafts 12 are revolubly mounted upon the cones and have their ends provided with annular ball-races 13, between which and the cones ball-bearings 1 1 are interposed. It is apparent that the bearings may be adjusted to permit the shafts to revolve with a minimum amount of friction.

The shafts 12 are provided with apertures 15 and 16, arranged at right angles with relation to each other. Operating-cords 17 are secured to the shafts by passing through the apertures 15, thence through the apertures 16 to dispose their free ends on the outside of the shafts, said ends being knotted to prevent the displacement of the operating-cords. The operating-cords pass through apertures 18 in the front plate, and their extremities are provided with grips 19. The shafts are provided with fly-wheels 20, situated at points adjacent the inner ends thereof.

The operation of the device may be explained in the following manner: The operating-cords are wound about the shafts. Then the operator grasps the grips 19 and pulls the cords to unwind them from the shafts. The

unwinding of the pulling-cords causes the shaft to revolve. The momentum thus im parted to the shafts rewinds the pulling-cords and returns the grips to their initial position. The operator again pulls the cords to unwind them. windings must be begun prior to the cessation of the momentum of the shafts, whereby the unwinding of the cords in opposite directions to the rotation of the shafts offers resistance to the pull on the cords. The momentum of the shaft is permitted to continue after the cords are unwound therefrom by the operator releasing the tension upon the pulling-cords before they are completely unwound.

Having thus described the invention, what is claimed as new is 1. An exercising-machine comprising a rotary member, and an operating-cord having one end secured thereto and wound one or more times thereon and adapted to be unwound under tension and rewound by virtue of the momentum imparted to the rotary member by said cord.

2. An exercising machine comprising a frame, a bolt carried thereby, a shaft revolubly mounted on the bolt, and an operatingcord having one end secured to the shaft and wound one or more times thereon and adapted to be unwound under tension and rewound by virtue of the momentum imparted to the shaft by said cord.

3L An exercising-machine comprising rotary members mounted to rotate independently, and operating-cords each having one This second and all subsequent unend secured to one of the members and wound one or more times thereon and adapted to be unwound under tension and rewound by virtue of the momentum. imparted to the members by said cords.

4. An exercising-machine comprising a rotary member provided with a fly-wheel, and an operating-cord having one end secured to the rotary member and wound one or more times thereon and adapted to be unwound under tension and rewound by virtue of the momentum imparted to the member by said cord.

5. An exercising machine comprising a frame, a bolt secured to the frame, bearings carried by the bolt, a rotary member journaled upon the bearings, and an operatingcord having one end secured to the member and wound one or more times thereon and adapted to be unwound by virtue of the momentum imparted to the member by said cord.

6. An exercising machine comprising a frame, a bolt secured to the frame, bearings adjustably mounted upon the bolt, a rotary member journaled upon the bearings, and an operating-cord having one end secured to the member and wound one or more times thereon and adapted to be unwound under tension and rewound by virtue of the momentum imparted to the member by said cord.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD WV. WHITE.

Vitnesses:

HARRY Forums, GEORGE D. RIoHEY. 

